#VU72721 Improper Authentication in SonicOS - CVE-2023-1101

Vulnerability identifier: #VU72721

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-1101

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SonicOS
Operating systems & Components / Operating system

Vendor: SonicWall

Description

The vulnerability allows a remote user to bypass 2FA authentication process.

The vulnerability exists due to improper restriction of excessive MFA attempts in SonicOS SSLVPN. A remote user can bypass 2FA authentication process and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SonicOS: 6.5 - 7.0.1-5095

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External links
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0005

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.